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Division 2

In Division 2, the world of metrology rotates around the "electrical triangle" of volt, ohm and ampere - from high-frequency and energy measuring technology to quantum electronics.


Electrical quantities are ubiquitous in metrology. The Electricity Division is charged with the realization and dissemination of the electrical and magnetic units. To this end, the Electricity Division develops precision electromagnetic measurements, which are based on electrical quantum metrology and quantum standards nowadays. Nanotechnology is employed and advanced for the in-house fabrication of superconductor and semiconductor quantum standards. Fundamental studies of quantum effects in condensed matter lay the groundwork for the electrical metrology of the future.

The Electricity Division offers various calibration services (see Calibration and Measurement Capabilities) and advises governmental authorities, standardization organizations, and industry on electrical measurements. Knowledge transfer programs support innovation and economic growth.

2 Abteilungsbericht aus dem Jahresbericht 2019

Optisch angesteuertes pulsgetriebenes Josephson-Spannungsnormal: Schaltung mit 3000 Josephson-Kontakten (links) und schnelle Photodiode mit optischer Faser (rechts).

Der Initiates file downloadAbteilungsbericht gibt einen Überblick über die wichtigsten Nachrichten und Ereignisse der Abteilung „Elektrizität“ des letzten Jahres und ergänzt somit den Opens internal link in current windowJahresbericht-2019 der PTB.


The Physikalisch-Technische Bundesanstalt (PTB) and the Bureau International des Poids et Mesures (BIPM, based near Paris) have agreed on a scientific cooperation in the field of metrology of the quantum Hall effect. As part of this cooperation, the PTB is supplying quantum standards to the BIPM for the realization of the unit of electrical resistance, the ohm.

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As first national metrology institute worldwide PTB has set up traceable scattering parameter measurements with the new coaxial connector of type 1.35 mm. The connector covers frequencies up to 90 GHz and will be included in the next issues of the relevant IEEE and IEC standards. This is the result of a cooperation to develop a connector for E-band applications, in which PTB has been involved...

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